Extending the search for neutrino point sources with IceCube above the horizon.

@article{Abbasi2009ExtendingTS,
  title={Extending the search for neutrino point sources with IceCube above the horizon.},
  author={R. U. Abbasi and Yasser Abdou and T. Abu-Zayyad and J. H. Adams and Juan Antonio Aguilar and Markus Ahlers and Karen Andeen and Jan Auffenberg and Xinhua Bai and Mark Baker and Steven W. Barwick and Ryan Bay and J. L. Bazo Alba and K. Beattie and James J. Beatty and Sabrina Bechet and Julia K. Becker and Kathrin Becker and Mohamed Lotfi Benabderrahmane and Jens Berdermann and Patrick Berghaus and David Berley and Elisa Bernardini and Daniel Bertrand and David Z. Besson and Martin Bissok and Erik Blaufuss and David J. Boersma and Christian Bohm and Olga Botner and Laura C. Bradley and J. Braun and D. Breder and Michael Carson and Thierry Castermans and Dmitry Chirkin and Brian John Christy and John Mason Clem and S. D. Cohen and D. F. Cowen and Michelangelo D'Agostino and Matthias Danninger and Christian Day and Cath{\'e}rine De Clercq and Levent Demir{\"o}rs and O. Depaepe and Freija Descamps and Paolo Desiati and G. de Vries-Uiterweerd and Tyce DeYoung and Juan Carlos D{\'i}az-V{\'e}lez and Jens Dreyer and Jonathan Dumm and M. R. Duvoort and W. R. Edwards and Robert Ehrlich and Jonathan Eisch and R. W. Ellsworth and Olle Engdeg{\aa}rd and Sebastian Euler and Paul A. Evenson and Oladipo O. Fadiran and Ali R. Fazely and Tom Feusels and Kirill Filimonov and Chad Finley and M. M. Foerster and Brendan Fox and Anna Franckowiak and Robert Franke and Thomas K. Gaisser and J. Gallagher and R. Ganugapati and Lisa Marie Gerhardt and Laura E. Gladstone and Azriel Goldschmidt and Jordan A. Goodman and R. Gozzini and Darren Grant and Timo Griesel and A. Gross and Sean Grullon and R. M. Gunasingha and Maria Gurtner and Chang Hyon Ha and Allan Hallgren and Francis Halzen and K. Han and Kael D. Hanson and Y. Hasegawa and Klaus Helbing and Ph. Herquet and Stephanie Virginia Hickford and Gary C. Hill and K. D. Hoffman and Andreas Homeier and Kotoyo Hoshina and Daan Hubert and Warren Huelsnitz and Jan-Patrick H{\"u}l{\ss} and Per Olof Hulth and Klas Hultqvist and Shahid Hussain and Richard Imlay and M. Inaba and Aya Ishihara and Janet S. Jacobsen and George S. Japaridze and Henrik J. Johansson and J. Mangano Joseph and K-H. Kampert and Alexander Kappes and Timo Karg and Albrecht Karle and John Lawrence Kelley and N. Kemming and Patrick J. Kenny and Joanna Kiryluk and Fabian Kislat and Spencer R. Klein and S{\'e}bastien Knops and Georges Kohnen and Hermann Kolanoski and Lutz K{\"o}pke and D. Jason Koskinen and Marek Kowalski and Thomas Kowarik and Mark Krasberg and Thomas Krings and G{\"o}sta Kroll and Kyler W. Kuehn and Takao Kuwabara and Mathieu L. M. Labare and Sven Lafebre and Karim Laihem and Hagar Landsman and R. J. Lauer and R. Lehmann and D. Lennarz and Johan Lundberg and Jan D. L{\"u}nemann and J. Madsen and Pratik Majumdar and Reina Maruyama and Keiichi Mase and Howard S. Matis and C. P. McParland and Kevin J. Meagher and Martin Merck and P. M{\'e}sz{\'a}ros and Thomas Meures and Eike Middell and Natalie Milke and Hiroko Miyamoto and Teresa Montaruli and Robert Morse and Steven Movit and Rolf Nahnhauer and Jiwoo Nam and Peter Niessen and David R. Nygren and Sirin Odrowski and Alexander R. Olivas and Miguel Olivo and Masaomi Ono and Sebastian Panknin and Simon J. Patton and Larissa Paul and Carlos P{\'e}rez de los Heros and J. Petrovic and A. Piegsa and Damian Pieloth and A. C. Pohl and Rodin Antonio Porrata and Nils Potthoff and P. Buford Price and Michael Prikockis and Gerald T. Przybylski and Katherine Rawlins and Peter Christian Redl and Elisa Resconi and Wolfgang Rhode and Mathieu Ribordy and Alfio Rizzo and Jo{\~a}o Paulo Rodrigues and Peter Roth and Florian Rothmaier and Carsten Rott and C{\'e}cile Roucelle and D. Rutledge and Bakhtiyar Ruzybayev and Dirk Ryckbosch and Heinz Georg Sander and S. Sarkar and Kai Schatto and Stefan Schlenstedt and Thomas Schmidt and David A. Schneider and Anne Schukraft and O. Schulz and Matthias Schunck and David Seckel and Benjamin Semburg and S. h. Seo and Yolanda Sestayo and Surujhdeo Seunarine and Andrea Silvestri and Alan Slipak and G. M. Spiczak and Christian Spiering and Michael Stamatikos and Todor Stanev and G. Stephens and Thorsten Stezelberger and Robert G. Stokstad and M. C. Stoufer and S Stoyanov and Erik A. Strahler and Troy Straszheim and Gregory W. Sullivan and Quentin Swillens and Ignacio J. Taboada and Alessio Tamburro and Oksana Tarasova and Andreas Tepe and Samvel Ter-Antonyan and C. Terranova and Serap Tilav and Patrick A. Toale and J. Tooker and Delia Tosi and Dusan Turcan and Nick van Eijndhoven and Justin Vandenbroucke and A. Van Overloop and Jakob van Santen and B. Voigt and Christian Walck and Tilo Waldenmaier and Marius Wallraff and Marc Walter and C. Wendt and Stefan Westerhoff and Nathan Whitehorn and Klaus Wiebe and Christopher Wiebusch and Albert Wiedemann and Gustav Wikstr{\"o}m and D. R. W. Williams and Ralf Wischnewski and Henrike Wissing and Kurt Woschnagg and C. Xu and X. Xu and Gaurang B. Yodh and Shigeru Yoshida},
  journal={Physical review letters},
  year={2009},
  volume={103 22},
  pages={
          221102
        }
}
Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos… 

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